Zhège yóuxì tài kēngdiē le, chōng le nàme duō qián háishi shū.
This game is a total rip-off: I spent all that money and still lost.
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坑 "a pit", as a verb "to trick someone into a trap", plus 爹 "Dad". Internet slang since around 2010 for anything that cheats or disappoints you: a product, a game, a plot twist. Casual and a little crude, so keep it out of formal speech.